i recently bought a 253 out of a 1971 HJ kingswood ( 138kw ) decent for a stock 253
I planned on putting this into my 1981 VC commodore ( lighest model of commodore released i do believe? )
BUT! ive had a speed bump.
ive been told i can not but a older motor into my VC commodore. 1971 Motor - 1981 Car
What do people know about this topic?
i live in SA, so it is the SA laws.
Current project; VH SL/X known as "NFNSUS"Ready for a overhaul due to licence issues
Well in 71 they didnt have the emissions filter box that started off in the HX (76)
so even if there was a way to do it it would have to pass 1981 emissions standards of a V8.
Just do it....wat cop is gonna know the engine number prefix is from an earlier car. VC's come out with 253's so I highly doubt you'll ever be questioned about it.
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i'm sure if you did it properly you'd be fine.
71 HJ ? Best to ring the transport dept ,Vehicle standards/modifications 1300 882 248. I remember reading about old cars exempt from emission adr,s for fitting after market manifolds ,but did a quick search and only came up with this http://www.transport.sa.gov.au/pdfs/...rs_vans_01.pdf .couldn,t make sense of it.
the rule is: which ever ADR's are newer need to be met. so lets say my 66' has no emissions at all, i can put any engine in as long as its pre emissions, but if i put a newer EFI engine in (say off a 90's camaro or something), then it needs to have evaporative loss, cats, egr, whatever emissions controls came out with the engine.
your car is newer than the engine, so all the emmisions pertanant to the car need to be met. so EGR, evap loss, TVS etc. all your ADR's are printed on the build plate, located on the passenger side strut tower.
lol, i tried to palm off an series 6 RX7 i was driving on my p's as a non-turbo 6 cylinder. the motorcycle cop just gave me a retarded look and started tell me things i didnt know about the car
got done pretty hard too.
(dont neg rep me, that was years ago and i have changed!)
My understanding was that if you put a newer engine in an older car it had to meet the emissions requirements of the car it came from. Eg. LS1 from a vx into a vc you would have to meet the emissions requirements of the vx. If however you bought a brand new crate motor with no engine number - Eg Brand new LS2 into vc, you only have to meet the emissions requirements of the car the engine is going into.
Four commodores and counting.
you can do whatever you want - so long as the engineer is happy to engineer it
Vic EPA 'guidelines' say that everyone in this thread is right, OR:
So you could do an LS2 with no emissions stuff, so long as you can prove "by means of test, or engineering reason" that it makes less emissions than a stocker... not sure what the emissions ADR for a '81 model car is like, but i suspect it would be along the lines of "if you don't die sitting in it idling, you've already passed"Replacement of an original engine by any
other engine may be acceptable if it can be
shown by way of test or appropriate
engineering reasoning that the emissions are
equal to or less than could be expected from
the original vehicle.![]()
You can fit the 71 engine but it has to be fitted with all emission control equipment relevent to the VC. I did a quick search on the SA transport website and found this document which should assist you. http://www.transport.sa.gov.au/pdfs/...rs_vans_01.pdf
My Garage:
VZ SS 6ltr 6 speed silver
VN 5ltr 5 speed Gold (Ex NSWPF Highway Patrol)
VH EFI 5ltr Supra 5 speed tiger mica
XC Barina SRI 1.8ltr 5 speed silver
You would be supprised, most HWP are car enthusiests and are pretty switched on. However unless your car is a complete heap of shit, most instances of Police looking under the bonnet at engine numbers and emissions equipment usually results from an epic fail of the attiude test.
My Garage:
VZ SS 6ltr 6 speed silver
VN 5ltr 5 speed Gold (Ex NSWPF Highway Patrol)
VH EFI 5ltr Supra 5 speed tiger mica
XC Barina SRI 1.8ltr 5 speed silver
just swap out the vally with one from a blue 253 there the same just they have all the emission stuff on it
I would guess it is what tha goviner said but I would also suggest you also talk to an automotive engineer in your area you might need to get it certified by them, that all the correct emissions gear is connected and also have an exhaust noise test done.
One other thing I have seen in extreme cases, but certainly not recommending is the engine number ground off and a buggered doner blocks engine number stamped on
cheers
Scott
Last edited by vkberlina; 03-11-2010 at 07:15 AM.
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